ArcGIS Pro Add-In targeting .net6 migration needed to .net8?

[JoëlHempenius3]

I was watching the plenary devsummit yesterday online and there was a quick mention that the next version of ArcGIS Pro will be build using .Net8.

I've developed a ArcGIS Pro Add-in for the marketplace which currently is build for ArcGIS Pro 3.0 and .Net6, do I need to migrate this Add-In to .Net8 and the ArcGIS Pro 3.3 SDK? Or will the Add-In which as I build it right now also work with ArcGIS Pro 3.3 and .Net8?

Thank you 🙂

[AdamDavis · Accepted solution]

Hi Joël,

Yes and no. 

Esri put out this information about the move.

https://www.esri.com/arcgis-blog/products/arcgis-pro/announcements/arcgis-pro-3-3-moves-to-net-8/

Note at the bottom that it depends on if you are using any .net that is no longer supported in 8.

So what we are gong to try to do is build the extension using 3.3 dlls targeting 8. Make sure it complies without any 8 specific errors and then switch back to targeting 6. In that way we are hoping  we can cover 3.0 - 3.3 with a single addinx.

Adam

[CharlesMacleod]

.NET 6 to .NET 8 is not a breaking change. Your 3.0-3.2 addins will run on 3.3 with no need to recompile.

If you are using specific 3rd party dlls/drivers, etc. then their forwards compatibility wld need to be verified but, generally speaking, Microsoft .NET 6 is forwards compatible with .NET 8 same as the Esri Pro assemblies.

[JoëlHempenius3]

Thanks @AdamDavis & @CharlesMacleod 

I only use NewtonsoftJSON, so I'm pretty sure that it should be compatible using your information.